Revise one more place where $item->is_root() should be used.
Make Unittest_TestCase base classes abstract.
Otherwise, test will crash when first test without setup() is found.
Change how HTTP_Exception errors are rendered for unit tests.
Makes first line look like "HTTP:404:message" or "HTTP:404" if no message found.
Revise (and add to) FileProxy controller and test for K3.  Passes!
Use orphaned Photos_Controller_Test as Items_Controller_Test.  Also, delete
Albums_Controller_Test (since it tests basically the same thing).

--HG--
rename : modules/gallery/orphans/Photos_Controller_Test.php => modules/gallery/tests/Items_Controller_Test.php
Fix class declation for newly renamed unit test.
Revise Items_Controller_Test for K3.  Passes!
Merge pull request #374 from shadlaws/unit_tests

Unit tests